“Genes are really important to happiness, but that’s based upon the cult of the average. What that means is that the average person doesn’t fight their genes. So if you’re born with genes for obesity or for pessimism, and you don’t change your behavior than your genes win. Happiness comes easier to some people, but happiness is a possibility for all if we change our behavior or our mindset.”

Below is a presentation he did for TED. Funny. Fascinating. And worth trying . . .